Install Spark-Plug Wires

This one sure seems like a no-brainer, leaving us to wonder why so many street machiners have ugly, crossfiring, too-long, falling-apart spark plug wires. Maybe it’s because many "custom-fit" or "precut-to- perfect-length" plug wires are neither. That’s why, especially on a modified engine, we like to use universal or cut-to-fit plug wires and route the wires exactly where we want them for a cleaner job.

For this installation we used a Chevy 230 inline six, which is virtually no challenge for routing. Our real purpose here is to show you how to assemble typical crimp-yourself wires. Jacobs Electronics Energy Core wires have a simple no-crimp assembly process, but virtually every other type we’ve seen demands you use the process shown here on a set of MSD Heli-Core wires.